Four men are trying to cross a small bridge. They can each individually cross it in 1 2 5 and 10 minutes respectively. To cross they must carry a lantern to light the way and at most two can cross at the same time (when two people cross it takes the longer time for both of them). Can they all get across in 17 minutes? (Remember they have to bring the lantern back for the other people to use!)

Answer

More Math Riddles

The Patern?

One is to three as three is to five and five is to four and four is the magic number. What is the patern?

One has three letters in the word three has five letters in it five has four letters and four has four letters in it (if you try more numbers they will always come back to the number four: so four is the magic number)

Double Letters!

What English word starting with a 'B' has three consecutive double letters?